EP3874170B1 - Carter de ventilateur à électronique de moteur intégrée et ventilateur avec un carter de ventilateur correspondant - Google Patents

Carter de ventilateur à électronique de moteur intégrée et ventilateur avec un carter de ventilateur correspondant Download PDF

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Publication number
EP3874170B1
EP3874170B1 EP20714198.7A EP20714198A EP3874170B1 EP 3874170 B1 EP3874170 B1 EP 3874170B1 EP 20714198 A EP20714198 A EP 20714198A EP 3874170 B1 EP3874170 B1 EP 3874170B1
Authority
EP
European Patent Office
Prior art keywords
ventilator
housing
motor
circuit board
receiving space
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20714198.7A
Other languages
German (de)
English (en)
Other versions
EP3874170A1 (fr
Inventor
Norbert Weisser
Arnold Kuner
Volker Mauch
Marcel Paffendorf
Stefan Mayer
Tobias Brucker
Fabian MOSER
Achim LÖFFLER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ebm Papst St Georgen GmbH and Co KG
Original Assignee
Ebm Papst St Georgen GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ebm Papst St Georgen GmbH and Co KG filed Critical Ebm Papst St Georgen GmbH and Co KG
Publication of EP3874170A1 publication Critical patent/EP3874170A1/fr
Application granted granted Critical
Publication of EP3874170B1 publication Critical patent/EP3874170B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/0633—Details of the magnetic circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/068—Mechanical details of the pump control unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/059—Roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/545—Ducts

Definitions

  • the invention relates to a fan housing with integrated motor electronics and a fan with a corresponding fan housing.
  • a motor with integrated motor control electronics is usually used.
  • the engine control electronics are regularly housed in a specifically designed electronics housing that connects directly to the engine structure.
  • the disadvantage is that a large number of housing components are required and replacing the motor control electronics in the event of service is not possible or only possible with great assembly effort due to their inaccessibility.
  • the electronics housing is designed to be sealed with a direct connection between the motor and the motor control electronics, as it is arranged within the medium conveyed by the fan. The ability to cool the engine control electronics is therefore severely limited.
  • a motor design with motor control electronics connected and accommodated in an electronics housing leads to an increased axial space requirement within the fan housing.
  • the ability to produce a stator that is suitable for this use and is pressed or cast with plastic, for example, is limited to small sizes with a relatively small diameter, which limits the size of the circuit board for the electronics and the foreseeable number of electronic components.
  • a fan representing the prior art is known.
  • a fan housing being formed from at least an upper housing part and a lower housing part and the motor electronics being integrated in one of the housing parts.
  • the housing accommodates the motor electronics, with a central opening for the bearing tube being provided in the area of the housing receptacle, whereby the circuit board layout is restricted and in particular is not optimized with regard to EMC requirements.
  • the invention is therefore based on the object of cumulatively optimizing the aforementioned features and of providing a fan which has a lower axial space requirement for integrating the motor and motor electronics into the fan housing and can be produced cost-effectively.
  • a basic idea of the present invention relates to the specific design of a one-piece fan housing with an integrated receiving space for the engine electronics or the circuit board of the engine electronics.
  • a fan housing of an axial fan for accommodating a motor and motor electronics, the fan housing having a substantially cylindrical housing wall extending in the axial direction with a first and a second end face, a motor flange being formed in the axial center to accommodate the motor, wherein the first end face (S1) is located below the second end face (S2), the motor flange forming a ring section and a hollow cylindrical bearing tube open on one side for supporting a rotor shaft of a rotor and the bearing tube being closed in the area of the motor flange at its lower end of the bearing tube and the motor flange forms a receiving space for receiving the motor electronics, which is arranged completely inside the cylindrical housing wall, specifically between the bearing tube end and the first end face (or the plane that is spanned by the first end face), characterized in that the bearing tube is integral with the ring section is connected via a plurality of connecting ribs extending in the radial direction, the receiving space being designed to be open on both sides in the
  • a plurality of connecting ribs each extending in the radial direction, connect the ring section in one piece to the housing wall.
  • Connecting ribs are preferably arranged in a star shape.
  • the connecting ribs and/or the connecting ribs span a common area with the ring section or are arranged in a common area when viewed in the axial direction.
  • the receiving space for the engine electronics is advantageously provided between this level and the level spanned by the first end face.
  • the housing wall forms a circumferential collar on its first end face, which has at least four sections, each with a straight edge, with two of the four sections being diametrically opposed to the center and running parallel to one another. In this way, a substantially rectangular or square envelope contour is obtained.
  • cylindrical fastening sleeves are formed on the housing wall, each of which is connected in one piece to the housing wall via a web section extending in the radial direction and is arranged in the four corner positions of an imaginary square or rectangle.
  • a further aspect of the present invention relates to a fan with a fan housing as described above, wherein the motor flange forms a cover receiving contour for receiving a motor flange cover and in the receiving space a motor electronics comprising a circuit board is integrated and the receiving space is formed by a preferably removable motor flange cover inserted into the cover receiving contour is closed.
  • motor electronics comprising a printed circuit board are integrated into the receiving space and the receiving space is filled with a casting compound, which preferably encloses the printed circuit board on all sides.
  • circuit board is designed without a central opening (as known in the prior art) in the area of the bearing tube. This is possible due to the concept of the present invention.
  • a z. B. PCB size that fully utilizes the recording space is selected.
  • a motor comprising a stator with stator coils and a rotor are arranged in the fan housing on the motor flange, the rotor being mounted on a rotor shaft installed in the bearing tube and connecting connections of the stator coils being provided in such a way that they Coming from the coils (thus on the stator side) towards the circuit board and from there at least in sections run through the circuit board and protrude from the circuit board at least in sections on the opposite side of the circuit board.
  • circuit board contact is provided on the side of the circuit board facing away from the stator. It is also advantageous if the connection connections run completely within the casting compound, at least with their section that runs within the receiving space.
  • Figure 1 shows a perspective view of various assembly parts of a fan (securing elements 40, 44, spring 41, ball bearing 42, spacer bush 43) in a not assembled state.
  • a fan housing 1 of an axial fan can be seen.
  • the fan housing 1 is designed to accommodate a motor 2 comprising a stator 2a with stator coils W and a rotor 2b.
  • the fan housing 1 has a substantially cylindrical housing wall 10 extending in the axial direction A. This has a first end face S1 and a second end face S2. In the axial center of the fan housing 1 there is a motor flange 11.
  • the motor flange 11 is designed on the one hand to accommodate the stator 2a and the rotor 2b, the motor flange 11 for this purpose having a hollow cylindrical bearing tube 12 that is open on one side for supporting a rotor shaft 14 (as in the Figure 5 shown in the sectional view).
  • the bearing tube 12 is closed in the area of the motor flange 11 at its lower bearing tube end 12u.
  • the motor flange 11 has a receiving space 15 for receiving the motor electronics 3.
  • the receiving space 15 is completely inside the cylindrical housing wall 10 between the bearing tube end 12 (at the transition from the closed end 12u of the bearing tube) and the arranged on the first end face S1.
  • the motor electronics 3 is arranged on a circuit board which is located below the closed end 12u of the Bearing tube 12 is located in the receiving space 15.
  • a potting compound 27 is introduced into the receiving space 15 around the circuit board (as shown in the figure in the non-potted state), so that the circuit board is completely protected against environmental influences and is integrated in the fan housing 1 to save space.
  • the motor flange 11 forms a ring section 20 and a plurality of connecting ribs 17, each extending in the radial direction R, which connect the ring section 20 in one piece with the housing wall 10.
  • the connecting ribs 17 run in a star shape from the outer wall of the ring section 20 to the inner wall of the housing wall 10.
  • the connecting ribs 17 span a common area E1 with the ring section 20.
  • the bearing tube 12 is connected in one piece to the ring section 20 via a plurality of connecting ribs 18 extending in the radial direction R. Below the connecting ribs is
  • connection connections 28 of the stator coils W are also provided, which run on the stator side towards the circuit board 3a and from there run at least in sections through the circuit board 3a and protrude from the circuit board 3a on the opposite side with its end section.
  • the circuit board contacting takes place here on the side of the circuit board 3a facing away from the stator 2a, for which purpose the connection connections 28 run completely within the potting compound 27, at least with their connecting section and contacting section within the receiving space 15.
  • the housing wall 10 has, for example in the Figures 1 and 2 can be seen, on its first end face S1 via a circumferential collar 22, which has the four sections 22a, 22b, 22c, 22d, each with a straight edge.
  • the straight edge sections 22a, 22b, 22c, 22d are each connected to one another via curved sections, with two of the four sections 22a, 22c, or 22b, 22d being diametrically opposed to the center and running parallel to one another.
  • the fastening sleeves 30 run essentially in the axial direction over the entire height of the fan housing 1 and are located at the four corner positions of an imaginary square, thus in or immediately next to the intersection of the respective tangents along the edge sections 22a, 22b, 22c, 22d.
  • the motor flange 11 also has a cover receiving contour 29 for receiving a motor flange cover, not shown, which closes or covers the circuit board 3a to the outside.
  • the motor flange cover can be used as an alternative to the casting compound 27 or in addition.
  • a cable duct 37 with a connecting cable 38 is also provided, the cable duct being integrated or arranged in or on a connecting strut 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Motor Or Generator Frames (AREA)

Claims (11)

  1. Carter de ventilateur (1) d'un ventilateur axial, destiné à recevoir un moteur (2) et une électronique de moteur (3), dans lequel le carter de ventilateur (1) présente une paroi de carter (10) substantiellement cylindrique et s'étendant dans la direction axiale (A), pourvue d'une première face frontale (S1) et d'une deuxième face frontale (S2), au centre axial duquel est réalisé un flasque de moteur (11) pour recevoir le moteur (2), dans lequel la première face frontale (S1) se trouve au-dessous de la deuxième face frontale (S2), dans lequel le flasque de moteur (11) réalise une partie annulaire (20) et un tube de palier (12) en forme de cylindre creux et ouvert d'un côté pour monter un arbre de rotor (14) d'un rotor (13), dans lequel le tube de palier (12) est fermé dans la zone du flasque de moteur (11) au niveau de son extrémité de tube de palier inférieure (12u), et le flasque de moteur (11) réalise un espace de réception (15) pour recevoir l'électronique de moteur (3), qui est disposé entièrement à l'intérieur de la paroi de carter (10) cylindrique entre l'extrémité de tube de palier (12u) et la première face frontale (S1), caractérisé en ce que le tube de palier (12) est raccordé d'un seul tenant à la partie annulaire (20) par plusieurs nervures de raccordement (18) s'étendant dans la direction radiale (R), dans lequel l'espace de réception (15) est réalisé de manière ouverte des deux côtés dans la direction axiale (A).
  2. Carter de ventilateur (1) selon la revendication 1, caractérisé en ce que plusieurs nervures de raccordement (17) s'étendant respectivement dans la direction radiale raccordent la partie annulaire (20) d'un seul tenant à la paroi de carter (10).
  3. Carter de ventilateur (1) selon la revendication 1 ou 2, caractérisé en ce que les nervures de raccordement (17) et/ou les nervures de raccordement (18) en conjonction avec la partie annulaire (20) se trouvent dans une zone commune (E1) vue dans la direction axiale ou sont disposées dans cette zone commune (E1).
  4. Carter de ventilateur (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la paroi de carter (10) réalise sur sa première face frontale (S1) une collerette périphérique (22) qui présente au moins quatre sections (22a, 22b, 22c, 22d) avec respectivement un tracé de bord rectiligne, dans lequel respectivement deux des quatre sections (22a, 22c, ou 22b, 22d) sont diamétralement opposées par rapport au centre et s'étendent en parallèle l'une à l'autre.
  5. Carter de ventilateur (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que sur la paroi de carter (10), quatre douilles de fixation cylindriques (30) sont réalisées qui sont respectivement raccordées d'un seul tenant à la paroi de carter (10) par une section d'entretoise (31) s'étendant dans la direction radiale et sont disposées dans les quatre positions angulaires d'un carré imaginaire ou d'un rectangle.
  6. Ventilateur, comprenant un carter de ventilateur (1) selon l'une quelconque des revendications précédentes 1 à 5, caractérisé en ce que le flasque de moteur (11) réalise un contour de réception de couvercle (29) pour recevoir un couvercle de flasque de moteur, et dans l'espace de réception (15) est intégrée une électronique de moteur (3) comprenant une carte de circuits imprimés (3a), et l'espace de réception (15) est fermé par un couvercle de flasque de moteur amovible, inséré dans le contour de réception de couvercle (29).
  7. Ventilateur comprenant un carter de ventilateur (1) selon l'une quelconque des revendications précédentes 1 à 5, ou ventilateur selon la revendication 6, caractérisé en ce que dans l'espace de réception (15) une électronique de moteur (3) comprenant une carte de circuits imprimés (3a) est intégrée, et l'espace de réception (15) est comblé avec une masse de scellement (27) qui entoure la carte de circuits imprimés (3a) de préférence sur tous les côtés.
  8. Ventilateur selon la revendication 6 ou 7, caractérisé en ce que la carte de circuits imprimés (3a) est réalisée sans ouverture centrale dans la zone du tube de palier (12).
  9. Ventilateur selon l'une quelconque des revendications précédentes 6 à 8, caractérisé en ce qu'un moteur (2) comprenant un stator (2a) pourvu de bobines de stator (W) et un rotor (2b) sont disposés dans le carter de ventilateur (1) sur le flasque de moteur (11),
    dans lequel le rotor (2b) est monté sur un arbre de rotor (14) inséré dans le tube de palier (12), et des raccordements de connexion (28) des bobines de stator (W) sont prévus qui s'étendent côté stator en direction de la carte de circuits imprimés (3a) et s'étendent de là au moins par endroits à travers la carte de circuits imprimés (3a) et dépassent au moins par endroits de la carte de circuits imprimés (3a) sur le côté opposé de celle-ci.
  10. Ventilateur selon la revendication 9, caractérisé en ce que la métallisation de la carte de circuits imprimés est prévue sur le côté de la carte de circuits imprimés (3a) détourné du stator (2a).
  11. Ventilateur selon les revendications 7 et 9 ou 10, caractérisé en ce que les raccordements de connexion (28) s'étendent au moins avec leur section à l'intérieur de l'espace de réception (15) entièrement à l'intérieur de la masse de scellement (27).
EP20714198.7A 2019-03-26 2020-03-25 Carter de ventilateur à électronique de moteur intégrée et ventilateur avec un carter de ventilateur correspondant Active EP3874170B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019107706.0A DE102019107706A1 (de) 2019-03-26 2019-03-26 Lüftergehäuse mit integrierter Motorelektronik
PCT/EP2020/058306 WO2020193607A1 (fr) 2019-03-26 2020-03-25 Carter de ventilateur à électronique de moteur intégrée

Publications (2)

Publication Number Publication Date
EP3874170A1 EP3874170A1 (fr) 2021-09-08
EP3874170B1 true EP3874170B1 (fr) 2023-10-25

Family

ID=68722115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20714198.7A Active EP3874170B1 (fr) 2019-03-26 2020-03-25 Carter de ventilateur à électronique de moteur intégrée et ventilateur avec un carter de ventilateur correspondant

Country Status (4)

Country Link
EP (1) EP3874170B1 (fr)
CN (2) CN209748306U (fr)
DE (1) DE102019107706A1 (fr)
WO (1) WO2020193607A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019107706A1 (de) * 2019-03-26 2020-10-01 Ebm-Papst St. Georgen Gmbh & Co. Kg Lüftergehäuse mit integrierter Motorelektronik
FR3105314A1 (fr) * 2019-12-19 2021-06-25 Valeo Systemes Thermiques Système de ventilation d’un véhicule automobile.

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US5997267A (en) * 1997-03-12 1999-12-07 Lee; Richard Non-electromagnetic interference generating cooling fan
JP3482373B2 (ja) * 2000-04-28 2003-12-22 ミネベア株式会社 送風機
JP2005020802A (ja) * 2003-06-23 2005-01-20 Matsushita Electric Ind Co Ltd ファンモータおよびそのファンモータを用いた送風ファン
JP4397832B2 (ja) * 2005-02-07 2010-01-13 山洋電気株式会社 軸流送風機
CN1900536B (zh) * 2005-07-18 2010-08-11 台达电子工业股份有限公司 风扇及其扇框
CN102474153B (zh) * 2009-07-18 2014-06-11 依必安-派特圣乔根有限责任两合公司 具有电子换向驱动马达的风扇
EP2547910B1 (fr) * 2010-03-15 2018-05-16 Ebm-Papst St. Georgen GmbH & CO. KG Ventilateur à moteur à rotor extérieur avec carter de paliers et logement pour l'électronique de contrôle intégrés
DE102010012392A1 (de) * 2010-03-22 2011-09-22 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilator
US8540494B2 (en) * 2010-04-15 2013-09-24 Adda Corporation Fan structure and stator module therefor
US8814501B2 (en) * 2010-08-06 2014-08-26 Minebea Co., Ltd. (Minebea) Fan with area expansion between rotor and stator blades
JP2013127219A (ja) * 2011-12-19 2013-06-27 Nippon Densan Corp ファン
DE102012106605A1 (de) * 2012-07-20 2014-01-23 Ebm-Papst Mulfingen Gmbh & Co. Kg Elektronikgehäuse für einen Elektromotor mit Berührungsschutz
DE202014100266U1 (de) * 2014-01-22 2015-04-24 Ebm-Papst St. Georgen Gmbh & Co. Kg Lüfter mit Lüftergehäuse
DE202015103889U1 (de) * 2015-07-24 2015-08-05 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilator mit Außenelektronik
US10021775B1 (en) * 2017-06-19 2018-07-10 Asia Vital Components Co., Ltd. Circuit board and fan frame connection structure
DE102019107706A1 (de) * 2019-03-26 2020-10-01 Ebm-Papst St. Georgen Gmbh & Co. Kg Lüftergehäuse mit integrierter Motorelektronik

Also Published As

Publication number Publication date
DE102019107706A1 (de) 2020-10-01
EP3874170A1 (fr) 2021-09-08
CN209748306U (zh) 2019-12-06
CN113272559A (zh) 2021-08-17
WO2020193607A1 (fr) 2020-10-01

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